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The following are technical (or at least technically used) terms from chapter 1 that I didn't understand to start with: * environments p11 : Symbol Tables (Which I have never been properly introduced too either) mapping variable names to information about the variables. * "side effects" : assignment statements that update variables and data structures. Does that mean that updating a variable is a side effect? I thought assignment statements directly affected change in the variables not that through some unknown or unrelated consequent action a variable happened to be updated by an assignment or update statement. OK so the side effect is associated with a call to a function or maybe an assignment statement that has unexpected results. x = y++; or x=++y; * DenotationalSematics : [no definition directly given in book]. See below * AttributeGrammars : this and the previous one "are methods for describing what programming languages do." Also see [[Semantics]] |
Compiler Construction Chapter 1: Introduction
The following are technical (or at least technically used) terms from chapter 1 that I didn't understand to start with:
- environments p11 : Symbol Tables (Which I have never been properly introduced too either) mapping variable names to information about the variables.
- "side effects" : assignment statements that update variables and data structures. Does that mean that updating a variable is a side effect? I thought assignment statements directly affected change in the variables not that through some unknown or unrelated consequent action a variable happened to be updated by an assignment or update statement. OK so the side effect is associated with a call to a function or maybe an assignment statement that has unexpected results. x = y++; or x=++y;
DenotationalSematics : [no definition directly given in book]. See below
AttributeGrammars : this and the previous one "are methods for describing what programming languages do."
Also see Semantics